Chemistry CBA 6 (Acid&Base)

Taste of weak acids:

• Bitter

• Salty

• Sour

• Sweet

Neutral solutions have a pH of:

• 0

• 1

• 7

• 14

A substance that is 3 on the pH scale would be a(n):

• acid

• base

• neutral

• solute

Since some acids seemingly "eat away" certain substances, acids are ____.

• bitter
• sliipery
• corrosive
• weak

What color does litmus paper turn in the presence of an acid?

• blue
• black
• green
• red

Which of the following is NOT a characteristic of an acid?

• sour taste
• corrosive
• it feels slippery
• it can burn the skin

A substance that is a 10 on the pH scale would be a(n) ____.

• acid
• neutral
• base
• indicator

What does pH measure?

• the amount of hydrogen (H⁺) ions

• the amount of hydroxide (OH^-) ions

• amount of water

• all of the above

What does a base release when placed in water?

• hydroxide ions (OH-)

• hydrogen ions (H+)

• ions

• molecules

Four substances were tested for pH, lemon juice (pH 2), baking soda (pH 9), bleach (pH 12), and milk (pH 6). Which of the following correctly lists the substances from most basic to acidic?

• lemon juice, milk, baking soda, bleach

• bleach, baking soda, milk, lemon juice

• milk, lemon juice, baking soda, bleach

• baking soda, bleach, lemon juice, milk